Function
attr (type, options) Attribute public
Module:
@ember-data/model
Defined in ../packages/model/addon/-private/attr.js:14
- type
- String|Object
- the attribute type
- options
- Object
- a hash of options
- returns
- Attribute
attr
defines an attribute on a Model.
By default, attributes are passed through as-is, however you can specify an
optional type to have the value automatically transformed.
Ember Data ships with four basic transform types: string
, number
,
boolean
and date
. You can define your own transforms by subclassing
Transform.
Note that you cannot use attr
to define an attribute of id
.
attr
takes an optional hash as a second parameter, currently
supported options are:
defaultValue
: Pass a string or a function to be called to set the attribute to a default value if and only if the key is absent from the payload response.
Example
app/models/user.js | |
1 2 3 4 5 6 7 8 |
import Model, { attr } from ' -data/model'; export default class UserModel extends Model { ('text', { uppercase: true }) text; } |
app/transforms/text.js | |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 |
import Transform from ' -data/serializer/transform'; export default class TextTransform extends Transform { serialize(value, options) { if (options.uppercase) { return value.toUpperCase(); } return value; } deserialize(value) { return value; } } |